CS43L22 datasheet(3/68 Pages) CIRRUS

3 / 68 page

DS792F1

CS43L22

Confidential Draft

10/7/08

TABLE OF CONTENTS

1. PIN DESCRIPTIONS .............................................................................................................................. 7

1.1 I/O Pin Characteristics ..................................................................................................................... 8

2. TYPICAL CONNECTION DIAGRAM ..................................................................................................... 9

3. CHARACTERISTIC AND SPECIFICATIONS ...................................................................................... 10

RECOMMENDED OPERATING CONDITIONS .................................................................................. 10

ABSOLUTE MAXIMUM RATINGS ...................................................................................................... 10

ANALOG OUTPUT CHARACTERISTICS .......................................................................................... 11

ANALOG PASSTHROUGH CHARACTERISTICS .............................................................................. 12

PWM OUTPUT CHARACTERISTICS ................................................................................................. 13

HEADPHONE OUTPUT POWER CHARACTERISTICS ..................................................................... 14

LINE OUTPUT VOLTAGE LEVEL CHARACTERISTICS .................................................................... 15

COMBINED DAC INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE ............................. 15

SWITCHING SPECIFICATIONS - SERIAL PORT .............................................................................. 17

SWITCHING SPECIFICATIONS - I²C CONTROL PORT .................................................................... 18

DC ELECTRICAL CHARACTERISTICS .............................................................................................. 19

DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS .................................................... 19

POWER CONSUMPTION ................................................................................................................... 20

4. APPLICATIONS ................................................................................................................................... 21

4.1 Overview ........................................................................................................................................ 21

4.1.1 Basic Architecture ................................................................................................................. 21

4.1.2 Line Inputs ............................................................................................................................. 21

4.1.3 Line & Headphone Outputs ................................................................................................... 21

4.1.4 Speaker Driver Outputs ......................................................................................................... 21

4.1.5 Fixed Function DSP Engine .................................................................................................. 21

4.1.6 Beep Generator ..................................................................................................................... 21

4.1.7 Power Management .............................................................................................................. 21

4.2 DSP Engine .................................................................................................................................. 22

4.2.1 Beep Generator ..................................................................................................................... 23

4.2.2 Limiter .................................................................................................................................... 23

4.3 Analog Passthrough ....................................................................................................................... 25

4.4 Analog Outputs .............................................................................................................................. 26

4.5 PWM Outputs ................................................................................................................................. 27

4.5.1 Mono Speaker Output Configuration ..................................................................................... 28

4.5.2 VP Battery Compensation ..................................................................................................... 28

4.5.2.1 Maintaining a Desired Output Level ........................................................................... 28

4.6 Serial Port Clocking ....................................................................................................................... 30

4.7 Digital Interface Formats ................................................................................................................ 31

4.7.1 DSP Mode ............................................................................................................................. 32

4.8 Initialization .................................................................................................................................... 32

4.9 Recommended Power-Up Sequence ............................................................................................ 32

4.10 Recommended Power-Down Sequence ...................................................................................... 32

4.11 Required Initialization Settings ..................................................................................................... 33

5. CONTROL PORT OPERATION ........................................................................................................... 34

5.0.1 I²C Control ............................................................................................................................. 34

5.0.2 Memory Address Pointer (MAP) ............................................................................................ 35

5.0.2.1 Map Increment (INCR) ............................................................................................... 35

6. REGISTER QUICK REFERENCE ........................................................................................................ 36

7. REGISTER DESCRIPTION .................................................................................................................. 38

7.1 Chip I.D. and Revision Register (Address 01h) (Read Only) ......................................................... 38

7.1.1 Chip I.D. (Read Only) ............................................................................................................ 38

7.1.2 Chip Revision (Read Only) .................................................................................................... 38

7.2 Power Control 1 (Address 02h) ...................................................................................................... 38

CS43L22 数据表(PDF) 3 Page - Cirrus Logic

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